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117284123 = 1119155823
BaseRepresentation
bin1101111110110…
…01110100011011
322011200122120102
412333121310123
5220011042443
615345450015
72622620135
oct677316433
9264618512
10117284123
1160227330
123334090b
131b3b59b8
1411810055
15a46acb8
hex6fd9d1b

117284123 has 8 divisors (see below), whose sum is σ = 128618496. Its totient is φ = 106061800.

The previous prime is 117284099. The next prime is 117284137. The reversal of 117284123 is 321482711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117284123 - 210 = 117283099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117284183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25811 + ... + 30012.

It is an arithmetic number, because the mean of its divisors is an integer number (16077312).

Almost surely, 2117284123 is an apocalyptic number.

117284123 is a deficient number, since it is larger than the sum of its proper divisors (11334373).

117284123 is a wasteful number, since it uses less digits than its factorization.

117284123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56025.

The product of its digits is 2688, while the sum is 29.

The square root of 117284123 is about 10829.7794529713. The cubic root of 117284123 is about 489.4929128675.

It can be divided in two parts, 11728 and 4123, that added together give a palindrome (15851).

The spelling of 117284123 in words is "one hundred seventeen million, two hundred eighty-four thousand, one hundred twenty-three".

Divisors: 1 11 191 2101 55823 614053 10662193 117284123